Wet gas meter



Feb. 2, 19:32. H. ENGSTFELD WET GrASl METER Filed June 5, 1926 2 Sheets-Sheet 1 Zalizaf 795 i f y of such ducts and'controlling Patentedl Feb. 2, 1932 ',Pffv'sn'r i oPricev HANS ENGSTFELD, F VIENNA, AUSTRIAv wirry Gas .Meren Appiiation nieuwe 5, 1926, seiai- No. 113,98@ ami in Austria June 19,1925.

'Gas meters with rocking measuring sections or elements as heretofore proposed, have beenl found objectionable in `many respects, more particularly in some of them it is necessary to maintain the liquidin Atwo parts at different levels which requires packing or seals difficult to construct and unreliable in construction.- In other types 'the mechanism'controlling the gas vflow' com-v prises sliding surfaces which slide oneupon the other so that due tothe sliding friction wear and teartakes place in a short-time and gas may escape without being measured.

The object of ,my invention is to provide F a gas' meter with rocking measuring elements in which the mass of the rocking parts and the volume of the whole meter, is greatly reduced, the driving power, necessary for the operation of the meter, is increased and the construction is simplified. y l

A further object of my invention consists in reducing the no-load work yof the gas meter by the provision of controlling devices the resistances of which against motion are much less than heretofore.

`With these objects in viewmy invention consistsin the Vcombination ofa measuring element consisting of sections connected with each otherand adapted to rock independenter edge permanently submerged in ythe liq uid,'with control devices arranged near the D centre of the meter and comprisinginlet andv exhaust'V ducts and rocking two compartment hoods, each hood being associated with a pair the associated ducts by a liquid seal. Y l

ln all the heretofore well known constructions` of wet gas metersthe gas distributing* and controlling devices (the pipes,- channels, hoods, valves, slide-valves, cocks or the like) are arranged above or below the measuring elements.' By such an arrangement the height of the meter is Vincreased without offering any advantage, the rocking angle of the "measuring elements isless than manv varrangement'in which the channels yare located ly about a common axis, each of such sections Y centrally below the rocking axis of themeas- -uring elements, as in the present application.

-The channels` being arranged centrally makey it possible to removethe liquid from these channels in a simple manner and draining of the Y gas conducting chambers is avoided under all circumstances. Because of the arrangement here disclosed it is possible to provide siphons to remove the liquid with-l out increasing the height off-the meter. The controlling l distributing `"elements (hoods) can be driven directly from ythe measuring spindle. I

l may combine a plurality of such measuring elements with the interposition of stationary sections, in'such a manner that each rocking measuring element rocks in a separate measuring or'displacementchamber enclosed by the associated stationary section.

In the annexed drawings l have shown by way of example several constructional forms of my invention. f f

-The Figs.Y l to 4 show a double acting two.' compartment meter in which Fig. l isl a vertical section on the line V-V 0f Fig. 4t.

1 FigjQ'is a vertical sectionfalong VI;VI of Figze, and the f F i-gs. 8 and t are vertical-and-horizontal sections through the axis of the meterrespectively. c

The Figs. 5 8 area development of the meter lac'cordingg; to Figs. '1 4 in which the Figs.y 5, 6,7 lare vertical Vsections on the lines the line 'IX-DQX-QQ, XI-XI of Fig'. 8 respectively -and Fig. 8 is a horizontal 'section through the axisof the meter. .f

In Figs. l to 4ta double acting v'two Compartment meter is shown having a single axis and external-distributing hoods in which a friction gear is used for actuatingthe counter.y y 'Y r Y The'casing formed by the front wall 88 the -rear ,wallll and the cylinder wall 1 is divided by partitionslQ substantially radial Or'parallelto the'axis and extending below the deepestfpossible water level v-vvith a certain extra dip for-the sake of safety. The partition.- 221 ,parallel to therear wall separates the .measuring space fromthe front space. The partition is bent to form offsets 222 adjacent r opposite sides of the cylindrical loo wall for the connecting pipes 234 and 235 to the measuring space. A radial vertical partition 11 beginning at the rear wall 116 and extending through the partition 221 divides the measuring space into two equal halves 223, 224 and the bottom end of the partition 11 extends below the lowest possible water level while its top edge is bifurcated forming with the cylindrical wall 1, a channel 75. The front side of the front box is formed by a wall 120 perpendicular to the axis andy formed with a deep recess in its middle part for providing the required space for the gearing 225. v A horizontal plate 119 connects the bottom portion of wall 120'to the wall of channel 125. rlhe front box is divided by a partition 96 located between the partition 221 and thewall 120 and extending below the water level into an admission and an escape,

chamber. lThe admission chamber contains the valvebox 121 with the inlet valve, the

i float chamber `with the float 97 and the disthe overflow edge 226 the pipe 134 and the escape plug` 94 are mounted.

Below the partition 11 a shaft 227 is journalled to which the measuring sections or elements 223, 229 are connected of which each rocks in a separate measuring chamber 223 or 224. These sections are substantially in the shape of cylinder sectors and are open at the bottom. 1n the bottom part ofthe measuring chamber` into which the measuring sections do not enter the chamber 12 is arranged, the main-part of which is below the water level and is provided on its top part with` two central channels 6, V7 from which pipes or ducts 8, 9 lead into the interior of the measuring sections and transverse channels 122, 125 arranged above the bottom plate 119 of the front chamber and lead below the admission and the escape compartments. From each of .these transverse channels 122, 125 a pipe 2300i' 231 projects into the admission compartment, Aa pipe 232 or 233 into the escape ycompartment and a pipe 234 or 235 into the measuringspaces 223, 224 above the measuring sections. Each pair of pipes 230, 231 and 232, 233 leading into the admission and vescape chambers respectively is controlled by onedouble distributing hood 236 or 237 both hoods being positively coupled with each other. The pipe 230 leading to the admission chamber from the transverse channel 122 and the pipe 233 of the transverse channel 125 leading into the escape chamber are closed.simultaneously by the distributing hoods 236, 237 i'vhile the pipes 231, 232

are open then on rocking the distributing hoods 231 and 232 are closed while the hoods 230 and 233 are opened.

rlhe ,shafts of the distributing hoods are journalled in the front boxl and carry each at its front end a crank 238 or 239 the pins of which are connected by a link 73. rlkhis link is provided in its middle part with a vertical slot 240 into which engages a pin or shaft 241 the other end of which is connected to a crank 156- secured to the shaft 227 of the measuring sections. r1`his crank is provided with two pawls 162 somewhat resembling a watch escapement. The. pawls cooperate with ribs 161 arranged on the link73; the pin 241 working in the slot 240 Vof the link is fixed to a pusher bar 243which is connected to the link and lever gearing 225 of the piston of a replenishing device by meansvvof a double lever 244 pivoted to the float chamber 96. The replenishing device consists of a piston 246 freely movable in a sleeve 245` through the hollow piston rodv225of which the liquid can flow upwards.; 1n order to avoid jamming in the link and lever gearing described, the link 242 itself carries no pin, but embraces the pin of the crank 156 and that of the pushing rod 243.Y Besides the latter is so bent that its connecting point with the lever 244 and the link-242 are in a vertical plane (Fig. 3). Moreover the pin of the crank 156 is connected tota link 187which causes to rock a lever 183 actuatingvthe counter (Fig. 2). I 191 which is so mounted on the cylindrical The counter is enclosed in a box wall 1 andthefront wall 83 that only the cover and the front wall of this box are outside the casing. Thereby thecounter is made readily accessible since after removal of the cover kof the counter casing the'. counterA proper is accessible without removing the front wall. The` fulcrumlof the lever 188 passes tightly through a stuffing box 190 in the rear wall of the counter casing and carries the slotted lever200 in the slotof which a pin 201 isadjustable for varying the amplitude of the movements of thelink and lever gearing actuating the counter.v To this pin two pushing bars 202, 203 are lconnected the.

shorter bent arms of which are forced towards each other by a .spring while their other arms are .pivoted to the free ends of the clamping jaws 204, 205. rlhe other ends of these clamping jaws are pivoted atftheir other endsto guiding links 206, 207 capable ofrocking around lthe driving shaft of the The liquid enters through the illinghtube 90 into thel escape and admission compartments of the front box first, Hows into the spaoecon- 1 taining the' measuring sections, rises in the latter and in the front box and flows through pipes 230 to 233 into the connecting channels' 122,125 and ows from thelatter through the channels 6, 7 into the pockets '8, 9, and through pipes V93- and 124 respectively, 'connected below the channels into the chamber 12 and the bottom Ipartei the' cylindrical'wall 1. The

liquid then rises in the reservoir above the overiiow edge 226 into theliquid seal 136 andl is depressed rising in the'pipe 134 so that v the excess-of water-'flows outthrough the plug x 94. The'meter isnow ready for use.v

The front box and the measuring chambers arein direct communication andv are separated from each other only afterltilling with water by the partition 221 dippingginto the liquid. Therefore after 'filling the Water reaches inboth chambers up to the level ofr the. opentop ends of the pipes 230', 233 so that'the measuring sections as well as'the distributing hoods (the latter only in the closing position) are vpermanently closed by water seals. In the same manner the two measuring compartments 223, 224 are separated rom each other, after the water has been filled in, kthe partition lldipping into` thewater. The chamber 12 and the reservoir are in direct communication with each other andin'both of them the water reaches vto `the level-oi .the overflow edge 226 of the 'water seal 136 so that thel escape pipes 93, 124 oi' the pockets are permanently ywater'sealed leading nearly to thefbottom part of the cylindrical wall for preventing anA accidental vescape of gas. The gas entering throughthe admission' pipe 95 iiows when the valve is open through the valve box 121./into the float chamber and thence with the positionlof the distributing hoods shown through the pipe 231intothe channel 125. Fronrthis it flows on the one hand through the pipe 235 into the right'hand measuring compartment 22sL abovethe measuring section 229 and on the other band throughl thechanneli? and the pocket9 below the left hand4 measuring 'section 228.4 When this measurings-ection is'f-in'its lowermost position lit will be raised-.bythe inflowing gas. VAtthe same time however, the measuring -section 229, rocking m the measuring v compartmentk 224 ,and `rigidly. connected to,

the first named measuring section will be moved downwards by the gas actingon the samero-m above.v These-two pressures act ing in the same sense are. added to each other yand serve for rforcing;out. theY gasalready' present in the measuring section 22.9.and in the measuring compartment 223 above the 'Furthermore on' forced on' raising the section 228 through thev pipe 234k into the pipe channel 122. Thence 1 the gas already measured iiowsthrough thev pipe 232'in'to the escape-chamber of the front boX and through the channel connected' thereto tothe escapepipe 76. After rockingv the distributing hoods which always takes place at the moment .when the movement of the measuring sections has to be reversed, the

gasiilows within the meter in the opposite. direction. If gas flows below the right hand measuring section 229 and above the left hand measuring section 228 the crank156 o'n the'shaft 227 of the measuring section is turnedcountcrclockwise the link 7 3 and the cranks 238, 239 being prevented.'fromV partaking 'in this movement by the fac-t that ne right 'hand escapenient pawl 162 strikes against the left hand end of the right-hand rib 161 provided on the link 73.` Consequent ly the distributing hoods remain at rest in the position opposite to that shown.' .Asalso the slot 240 remains in its position owing to the rotation o' the crank '156 by means of the link 242, the pin 241, the pushing rod 243 and the double lever 244, the piston 246.. of Vthe replenishing device is slowlyraised.'Y

Directlyv in the left hand reversing position. of the measuring sectionsand of the` crank 156 the right hand escapementpawl 162' is disengaged fromv the right hand rib 161 of the-link 73 so'that this link moves suddenly tothe lei-t under the action ont the weight of thereplenishing piston whereby the distributmg hoods are brought into the position vshown in Fig. 2 by'means o1"v their cranks and' thus'the Vgas admission is reversed: 'In order to avoid a violent knookingot the measuring hoods (noise) and to limit the stroke of same, their cranks carry yprojections 247 'which strike against bufersl248 for instance oi* lead.' yThe replemslnng apparatus serves the'same purpose which contributes tofreducing noise in the manner of a hydraulic brake. The rapid-downwards movement of the replenishing piston brings about besides l thisrreversion-'also a 4raising of the water through thehollow piston rod i225 which water enters the front box for maintaining constant they water level in the same.

The, clockwise movementof` the crank 156 is 'transmitted' rthrough, the link 187 to the levers 188 and v200 of the counter. The-slotted',v

lever 200 'moves from the central position shown tothe left whereby on the one hand the clamp jaw 205 is caused to disengage the clamp disc 195 by the'pushing'bar 203 and is brought into the position ready for operation, and on the other hand the clamp ljaw 204 is brought into firm engagement with the clamp disc by the pushing rod 202 and the clamp disc and therefore also the driving shafts ofthe counter are moved in the direc- Y tion of the arrow. The return movement of meter may be called a two axis quadruple act'- ing two compartment meter. The casing vagain consists of the front wall 88, the rear wall 116 and the cylindrical wall 1, but is not provid-ed with a radial partition 11 to divide the measuring chamber into two halves, but both measuring sections rock in .the saine measuring chamber. rlhis is en'- closed on the one hand by the walls 116 and 1 and on the other hand by the partition 221 perpendicular to the axis and the walls of the chamber 12. The partition 221 is not constructed as a dipping partition but completely separates the measuring chamber from the front box and the water chamber. The latter two communicate with each other only by an opening 165 for lling in theV water,

this opening beingv far below the normal water level. The front box is divided by a dipping partition 96 into an admission and an vescape chamber the same as in the meter shown in Figs. 1 and 4. 1n these chambers the valve, the float 97, the filling tube 90 and the other parts are arranged the same as in the meter above referred to, vand from the escape chamber a channel leads to the escape 76. Centrally of the casing a shaft 227 is journalled', an opening 166 for the same to pass through to the front box being provided in the drinn wall and the measuring sections 42, 43, 52, 53 rock around the axis of this shaft. ln each half of the measuring chambera large measuring section 43 or 53 and inside' each of the latter a small measuring section 42 or 52 is arranged all four measuring sections being adapted to rock around the shaft 227.. Each of the small measuring sections is firmly connected Vby arms44 or 45 with a large measuring section oscillatingV in the other half of the measuring chamber each of these arms carrying a pendulum weight 82 for balancing the twoV measuring systems. Now in order to transmit the movement of thetwo sections to the counter one pair of the arms 45 and therefore one system of measuring sections 52, 53 is firmly connected with the shaft 227 while the other arm 44 and their measuring sections 42,43 are freely rotatable y the arms 44, 45 a link 46 or 47 is pivoted to one arm at the same distance from the' axis as the pivot for another arm, the other ends of these links being connected to the'free end of a rocking lever 43 journalled at 49 inthe chamber 12. The links 46, 47 are Vequal in length andv have for their eect that *bothV pairs of measuring sections oscillate symmetrically relatively to the central plane of the meter. The chamber 12 closed at its rear end leaves free'so much space between it and` the rear wvall 116 that the pendulums and the links may oscillate freely. Below the bot/ tom of the measuring chamber two channels 6, 7 are provided. The channel 7 communicates with two pockets 9, 4() which lead into the interior of the large measuring sectionsl 43, 53 and thus between the small and the larOe measuring sections. The channel 7 l? ID leads to a transverse channel 122 from which corresponding recesses 16 into which lead the pockets 9, 40. From thecentral channel 6 pipes 8, 41 lead into the interior ofthe small measuring sections 42, 52 'and onY the other hand this channel 6 communicates with a transverse channel 125 from vwhich pipes 231, 233 lead into the admission and into the escape chambers and which is directly conneeted with the measuring chamber by means of a channel 234 and an opening 180 in the drum wall 221 above the highest water level. The

pair of pipes 230, 231 entering the admission chamber as also the pair of pipes 232, 233 leading into the escape chamber are controlled by distributing hoods 236, 237 in the same way as in the meter described with reference to Figs. 1 and 4, said hoods being constituted as liquid seal valves only the control gear is constructed somewhat differently.

Each of the axes of the distributing hoods carries at its front end a crank 238 or 239 the pins of which are connected by a link-73 so that the cranks rotate in the saniedirection. A sliding pin (roller) 241 fixed 'on the middle ofthe link 73 works inthe slot of a fork 240 engaging the pin 156 of the crank 162 Xedy to the shaft 227. This rocking crank162 is provided with an abutment rib 160 which cooperates withl an abutment rib 161 lsecuredl to 162 makes a rocking movement according to the movement of the rocking measuring section. yllierefore the rib moves also alternately in an "opposite direction. On the crank 162 the fork 240 is journall'ed in which the pin 241' of the link 73v connecting the cranks 238, 239 of the controlling hoods 236,

237 moves. For example, it is supposed that the crank 162 moves in a counter-clockwise i direction (that is to say from the right hand to the left hand in Fig. 5), and that the control hoods are yin the position shown in Figs. 5 and 7 'As long as the joint 156..lies on the 5 right side of a vertical line extending through the middle oi' `the pin 241, control devices 236,v

to say'this power component would move the` cranks 238,239 in the'rightfhand end posiy tion.. But as it is necessary that the control hoods be reversed suddenly, this right hand movement of the pin 241 is not permitted in the vtirst moment since vthe rib 161 of the control 'hood 27 3rengages or is locked by the rib 160 ofA the crank 162. It is,

only' after the rib 161 is moved to the left sol that the-rib 160 comes. out of engagement with thel rib 161 that the rib 161, the hood 237, the crank 239, the link 7 3 and they pin 241'are freed so that these parts and all the other parts coupled with the link 73 suddenly move tothe opposite end position, i that is to say, the hoods 236, 237 move from the rightto-the left while the pin 241 suddenly moves fromv the left'to the right. This sudden Vmovement is effected by the weight of the piston ot the replenished lpump which is coupled by means of the lever 244 and the link i vwit-h the fork 240.- A replenishing device constructed as shown in Fig. 7 is driven by the crank 162y through the medium of a link pivoted to the fork240'and connected at the other end to a bent lever 244extending over the front plate and directly connected to the pis- Aton rod 225 ofthe replenishing apparatus.

' .ISO

Whenl the piston is slowly raised the liquid flows under the piston through the radial clearance between the ksleeve 245 and the pistonwall. From its highest position theV pis- ,ton moves downwards with great rapidity under the influence' of its weight. By this l movement the liquid is dashed high through: v the hollow pistonA rod 225k as the radial -clearance acts as a labyrinth packing of comparative-great resistance, during this rapid down- -wards movement of the piston. The Inovement of the driving mechanism of the counter is inthe present case derived 'from the crank 5 156 by a single 'lever-188 in the slot of the outer end of which works a pin fixed on the crank 162 and the other end of which is conter). yThisk enters through the filling tube 90 into thev front chamber and flows through the opening 165 into" the measuring chamber, rises :inboth chambers and then falls through the pipes 231, 232fint0A the transversellld Central channels and iiows fromthe latterI through dipping tubes 93 into the water reservoir. y In this the water Arises Vand the excess of water .escapes in the manner described through the water seal 136, pipe 134 and ,escape plug 94.

At the same time the float 97 is raised and thus the valve'is opened so that gasl can enter. ,The incoming gas reaches .in the ,well known manner the admission chamber. In the position of the distributing hoods shown .in Fig. 7 the gas flows through'the pipe 231 into the transverse channel 125 and from this on' the one hand through the channel 6k and thepipes 8, 41 below bothl small measvuringchambers 42, 52 and on the other hand through thel channel 234 and the opening 180 into `the Vmeasuring chamber above the large measuring sections. As both systems of measuring sections are coupledby means of the links a small measuring section and the large measuring section enclosing SFy the same move towards each other the twoy pairs of measuring sections moving sym- `metrically relatively to the central plane ot" the meter. Thereby the gas contained between each of the small measuring sections and the large measuringse'ction enclosing the saine is Jforced through thepockcts 9, 40 into the channels 7 and v122v and from these it escapes through the pipe 232 into the escape chamber and further on through the l channel 75 and the escape pipe 76. W hen the distributing hoods 236, 237 are tilted the gas having entered below the small and above thelarge measuring sectionsy is forced out in the opposite direction by the fresh gas entering between t'he measuring sections. .The position of the distributingy gear shownin Fig. 5 corresponds to the position of the distributing hoods :shown in Fig. 6.* The Operation of the distributing gear andof the driving mechanism of the counter is the same asin the meter. shown in Figs. 1 and 4. Of course the distributing element-sot the two meters might be interchanged without, in any way interfering wit-h the operation.

I/Vhat I claim is: Y

1 In a wetl gas meter thecombination of a casing partly filled with liquid and enclosing anl inlet, an exhaust and a` measuring chamber, the level of the liquid being substantially the same. in all 'of the said chambers, a

' measuring element located in such measuring chamber and comprising measuring lsections f adapted to rock around an 'axiscommon to all of them, and relatively to each other, the rocking` measuring sections each having: a wall substantially parallel to` such axis and an opening in the bottom, the bottom edge l of such wall and ot such openingpermanently dipping into the liquid, control devices for controlling the iiow of the gasinto andout of thek said measuring sections, Aa counter, means for operatively connecting the ysaid measuringy elementlwith the lsaid control `deing open ends, projecting beyond the liquid and communicating `with the interior of the `vsaid measuring sections and with the said =in`let .and.exhaustchambera the said 'control devices also comprisingA hoods and rocking shafts for the hoods, and a shaft connected 'tofone of the measuring sections, each hood being associated IWith a pair of such ducts and consisting of two compartments onen on f 4bottom and separated from eachother by a `Wall :the bottom end of which permanently dips into the liquid, and fthe :open bottom ot fthe said compartments being adapted .to dip alternately .into the liquid surroundingI the open topfends ofthe associated ducts andto Vrise above such liquid, `and said means including mechanism connecting` the' rocking `shafts Withtheshattof one of the measuringl elements.

2. Ina-Wet gas meter the combinationot a `casingpartly.i'illed Witliliquid and enclosing` an inlet, anexhaustanda ,measuring chamzber, the level ofthe liquid being substantially :the same in all of the said chambers, a vmeasuring element located in such ,measuring chamberand comprising measuring sec- :tions adapted to rock .around an airis ,com-

:monto all ot-them, each of the said measur- :ing'sections having a Wall substantially par-l allel to such-axis and aniopening in the :.bot-

tom, the bottom .edge oi -such Wall `and of `Such opening permanently dippinginto .the ili'quid, control devices 1for controlling Ithe fiow ofthe-gas into and out ofthe said measuring sections, ,a counter, means Jfor operatively .connecting the :said .'nieasuring ele- 'ment with the said controlfdevices and count- Y iler, the said `Control devices being arranged :near the center Vof zthe meterrand `comprising inlet and exhaust ducts 'having open ends,

projecting beyond the liquid and communiheating With the interior ofthe said measur-` ingvsections and With the said inletyand eX-` l being adapted to `dip alternately into the :liquid surrounding the opentop ends ot' the` associated ducts Vand to rise above suchv liquid.

,3. ln a 'Wet gas meter the combination of ya .casing partly filled with liquid and enclosing an inlet, an `exhaust and a measuring chamber., the level oic the liquid being `substantially -thesame in all of the said fcfhambers, a measuring element located in :such :measuring chamber and comprising,`

lsaid fn'ieasuringsections, a :count-er, means for yoperatively :connecting ,the said :measuring element -ivith the lsaid Vcontrol devices .and counter, the said control devices beingl ar- .,ranged near `the center of the `meter and comprising inlet and exhaust ducts ,having open ends, projecting abeyond the liquid and `communicating lwith .the interior of fthe said measuring sections and .with 'theasaid yinlet Aand 4exhaust chambers, the said control devices comprising -hoods and rocking shafts",

for the hoods, eachhood 'being `associated With `a apair of :such ducts and consisting of twogcompartments open onbottom and sep- ;arated treme-ach other bya Wall the bottom end ,of which permanently dips .intothe lqnid, 1and the open bottom of there-said compartments fbe'ing adapted yto 'dip Lalternately :into the .liquid :surround-ing the open -top :endsgoiithe associated ductsandto rise above h:such fliquid, the said Ameans for operatively connecting the measuring element -With'- the control devices and `:the counter comprising a link and lever gearing having lost motion and interconnecting the measuring element and the control devices, means for 'locking` and unlocking the control device in predetermined positions, said `control devices be# adapted -to 4be started lay-gravity, kWhen unlocked. v

4. ln a wet tgas-meterthecombination of a casing partly filled With yliquid and enclosing an inlet, -an exhaust and a measuring chamber, the level Aoit .the liquid being ,substantially the same in ,all `of the said chambers, a measuring element located `in such measuring-chamber and comprising,

VVmeasuring sections adapted to rock .around ann-,axis `common to all of them, and `relatively `:to eachother, each of the rocking measuring sections yhavinga Wall substanvtiallyparallel to such axis `and an opening in the-bottompthe bottom `@dg-ect such Wall .and of ,such opening ,permanently dipping into the liquid, control devices for control- ,ling the .flow ci the gas into .and outof the saiduneasuifing sectioiisa,counter, means for operatively connecting `the said vmeasuring element .with the said control devices and counter, the said control devices `being .arranged ynear ythe center lof the meter and comprisinginlet ,and exhaust ducts having open'eiids, 4projecting beyond fthe liquid and communicating with the interiorof the said measuring sections and With .the said inletV andV exhaust VVAchambers, the lsaid, coniosa i trol devices also, comprising hoods and rocking shafts *for tliehood, each hood being associated to a pair of suoli ducts and con-5 sisting of tWo compartments open on bottom and separated from each other by a Wall the bottom end of which permanently dips into the liquid, and the open bottom of the said compartments being adapted to dip alternately into the liquid surrounding lthe one. of the measuring sections, a crank lon such-shaft, a link and lever gearing having lost motion and interconnecting the said crank and the control devices, means for locking and unlocking the control devices in predeterminedpositions, said control devices being adapted to be started by gravity, When unlocked.V f

5. In avvet gas meter the combination of a casing partly iilled With liquid and enclosing an inlet, an exhaust and -a measuring chamber, the level oit the liquid-being substantially the samein all of the said chambers, a .measuring element located in such measuring chamber and comprising, measuring sections adapted to rock'around an axis common to all of them, and relatively to each other, each ofthe rocking measuring sections having a Wall substantially parallel to such axis and an opening in the bottom, the bottoni edge of such Wall and of lsuch opening .permanently dipping into the liquid, control devices for controlling the ilovv of the gas into and out of the said measuring sections,

-a counter, means for operatively connecting the said measuring element With the said control devices and counter, the said control devices being. arranged near the center of the lnieterand comprising inlet. and exhaust ducts having open ends, projecting beyond fthe liquid and communicating Awith the-interior of the said'measuring sections and With the said inlet and exhaust chambers, the said control devices also comprising hoods and rocking shafts for the hoods, each hood being associated to a pair of such ducts and consisting of tWo compartments open on bottom and separated from each other by aWall the bottom end of which permanently'dips into the liquid, and the open bottom of the said compartments being adapted to dip alternately intothe liquid surrounding the open top ends oi the ,associated ducts andto rise above such liquid, the said means for operatively connecting the measuring element with the control devices and the counter, comprising `a link and lever gearing comprising tWo ele- Vments having lost motionV and interconnecting the said measuring-element andthe conf trol. devices, means for locking and unlocking the control devices in predetermined po- .by gravity, When unlocked.

sitions, such locking and unlocking means comprising an escapement paWl mounted on ,one element of the said link and lever gearing and a rib adapted to engage With thesaid escapement ypavvl mounted on another element of the said link and lever gearing, said lcontrol devices being adapted to be started 6. ln a Wet gas meter the combination of a casing partly filled with liquid and enclosing an inlet, anexhaust and a measuring chamber, the level of the liquid being substantially the same in all 01"' lthe said chambers, a measuring element located in such measuring chamber and comprising, measuring sections adapted to rock around an axis common-to all of them, and relatively to each other, each of the rocking `measuringsections having a Wall substantially vparallel to trol devices Yfor controlling the iovv of the gas into and out of the said measuring sections, a counter, means for operatively connecting the said measuring'element With the said control devices and counter, the said control devices being arranged near the center of the meter and comprising inlet and. exhaust ducts having open ends, projecting beyond` the liquid and communicating With the interior of the said measuring sections and with the said inlet and exhaust cha1nbers,the said control devices'also comprising hoods and rocking shafts for the hoods, each hood being associated to a pair of such'ducts and consisting o tWo compartments open onbottom and separated from each other by a Wall 'the bottom end of which permanently dips into the liquid, and the open bottom of the said compartments being adapted to dip alternately into the liquid surrounding the open top end of the associated ducts and to rise above such liquid, the said means for Y operatively connecting the measuring element with the control devices and the counter compri sing a link and lever gearing comprising tWo elements having lost motion and inter-- `Aieu connecting the said measuring element and the control devices, means for locking and unlocking the control device in predetermined positions, such locking and unlocking means comprising an escapement pavvl mounted on one element of the said link and lever gearing and a rib adapted to engage `With the said escapeinent pawl mounted on another element et the said link and lever gearing, a pin on the element `mounting the said escapement paWl, a rocking lever adapted to en age With suoli Qin and toV actuate the.

an-inlet, an exhaust anda measuring chamber,v

-ilO

Aconnecting` the sai/l mea.

the level of the liquid being substantially the same in all of the said chambers, a i Aeasuring element located in such measuring chamber and comprising, measuring sections adapted to rock around an axis common to all of them, and relatively to each other, each or" the rock ing measuring sections having a Wall substantially parallel to such axis and an opening in the bottom, the bottom edge of such .Wall and of such opening permanently dipping into the liquid, control devices for controlliv l the iiov measurof the gas into and out of the sad ing sections, a counter, means ttor operativ ij ing element `witl the said control devices and counter, the said control devices being arranged near the center oi" the meter and comprising inlet and exhaust ducts having open ends, projecting beyond the liquid and communicating' with the interior of the said measuring sections and with the said inlet and exhaust chambers, the said control devices also comprising hoods and rocking shafts for the hoods,'each hood being associated to a pair of such ducts and consisting of two compartments open on bottom and separated from each other by a Wall the bot# tom end of Which permanently dips into the liquid, and the open bottom ot' the said compartments being adapted to dip alternately sections, a crank on such shaft and an oper ative connection between such crank and the counter, such connection coniiprising a frictional pavvl and a ratchet gea 8. ln a Wet gas meter lthe combination oit casing partly iilled with liquid and enclosing an inlet, an exhaust` and a measuring chamber, the level of the liquid being subsuantially the same in all of the said chambers, a measuring element located in such measuring cham-V ber and comprising, measuring sections adapted to rock around an axis common to all of them,'and relatively to each other, each ot the rocking measuring sections having a Wall substantially parallel to suon, axis and an opening in the bottom, the bot-tom edge of such Wall and of such opening permanently dipping into the liquid, control devices for controlling the flow of the gas into and out oitl the said measuring sections, a counter, means Jfor operatively connecting the said measuring element with the said control devices and counter, the said control devices being arranged near the center of the meter and comprising inlet and exhaust ducts having open ends, projecting beyond the liquid and communicating with the interior ott the said measuring` sections and with thesaid inlet and exhaustchambers, the said control devices comprising hoods and rocking shafts for the hoods, each hood being associated to a pair. of such ducts and consisting oit tivo compartments open on bottom and separated from said measuring element and the vcontrol devices, means for locking and unlocking the control devices in predetermined positions and a Weight operatively connected with the control device and adapted to start the control devices when unlocked;V

9. ln a Wet gas meter the combination oi a casing partly'filled With liquid and enclosing an inlet, an exhaust and a measuring chamber, the level of the liquid being' substantially the same in yall of the said chambers, a measuring element located in such measuring chamber and comprising, measuring sections adapted to rock around an axis common to all ot them, and relatively to each other, each of the rocking measuring sections having a Wall substantially parallel to such axis and lan opening' in the bottom, the bott-om edge of such Wall and of such opening permanently dipping into the liquid, control devices for controlling the flow ofthe gas into and out of the said measuring sections, a reple-nishing pump comprising a piston, a counter, means for operatively connecting the said measuring element With the said control devices and counter, the said control devices being are ranged near the center of the meter and comprising inlet and exhaust ducts having open ends, projecting beyondthe liquid and comh municating .vith the interior of the said measuring sections` and With the said inlet and'eXhaust' chambers, the said control devices also comprising hoods and rocking shafts for the hoods, each hood being associated to a pair of such ducts and consisting of tvvo compartments open on bottom and separated irom each other by a Wall the'bottom end Vof which permanently dips into the liquid, and the open bottom ont' the said compartments being adapted to dip alternately into the liquid surrounding the open top ends of the associated ducts and to rise above such liquid, the said means ii'orV operatively connecting the measuring elements Withthe control devices and the counter comprising a link and .lever gearinghaving lost motion and interconnecting the said measuring element and the control devices, means for locking and unlocking the control devices in predetermined positions and means for opera tively connecting the said piston of the replenishing 'pump With the control devices,

kso

said piston being adapted to start the control devices when unlocked.

10. In a Wet gasmeter the combination of a casing, partly filled with liquid, and enclosing an admission, an escape and at least one measuring compartment, the level of the liquid being substantially the same in all 0f the said compartments, measuring sections, located in said measuring compartments and adapted to rock around an axis common to all of them relatively to each other, each of the said rocking measuring sections having a Wall substantially parallel to such axis and an opening on the bottom, the bottom edge of such Wall and of such opening permanently dipping in the liquid, inlet and exhaust ducts communicating With the interior of said measuring sections, and control devices comprising liquid sealed valves sealed by the liquid in the casing and for controlling the flow of the gas into and. out of the said measurin sections and compartments, the said liqui sealed valves being arranged near the center of the meter and cooperating with inlet and exhaust ducts, means for operatively connecting the said measuring sections W1th the said liquid sealed valves, such liquid sealed valves controlling the gas low into and out of the measuring sections and compartments in such a manner, that some of the said measuring sections and compartments are connected With the yadmission compartment, While simultaneously all other 'measurin sections and compartments are connecte With the said escape compartment of the meter.

In testimony whereof I have signed my name to this speciication.

HANS ENGS'IFELD. 

